/
test_env.go
142 lines (113 loc) · 4.14 KB
/
test_env.go
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package helpers
import (
"context"
"os"
"path/filepath"
"runtime"
"github.com/google/uuid"
. "github.com/onsi/ginkgo/v2" //lint:ignore ST1001 this is a test file
. "github.com/onsi/gomega" //lint:ignore ST1001 this is a test file
rbacv1 "k8s.io/api/rbac/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/kubernetes/scheme"
"k8s.io/client-go/rest"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/cache"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/envtest"
"sigs.k8s.io/controller-runtime/pkg/manager"
metricsserver "sigs.k8s.io/controller-runtime/pkg/metrics/server"
"sigs.k8s.io/controller-runtime/pkg/webhook"
)
func NewCachedClient(cfg *rest.Config) (client.Client, context.CancelFunc) {
ctx, cancel := context.WithCancel(context.Background())
clientCache, err := cache.New(cfg, cache.Options{Scheme: scheme.Scheme})
Expect(err).NotTo(HaveOccurred())
go func() {
defer GinkgoRecover()
Expect(clientCache.Start(ctx)).To(Succeed())
}()
clientCache.WaitForCacheSync(ctx)
k8sClient, err := client.New(cfg, client.Options{
Scheme: scheme.Scheme,
Cache: &client.CacheOptions{Reader: clientCache},
})
Expect(err).NotTo(HaveOccurred())
return NewSyncClient(k8sClient), cancel
}
func NewUncachedClient(cfg *rest.Config) client.Client {
k8sClient, err := client.New(cfg, client.Options{
Scheme: scheme.Scheme,
})
Expect(err).NotTo(HaveOccurred())
return NewSyncClient(k8sClient)
}
func NewK8sManager(testEnv *envtest.Environment, managerRolePath string) manager.Manager {
k8sManager, err := ctrl.NewManager(SetupTestEnvUser(testEnv, managerRolePath), ctrl.Options{
Scheme: scheme.Scheme,
WebhookServer: webhook.NewServer(webhook.Options{
Host: testEnv.WebhookInstallOptions.LocalServingHost,
Port: testEnv.WebhookInstallOptions.LocalServingPort,
CertDir: testEnv.WebhookInstallOptions.LocalServingCertDir,
}),
Metrics: metricsserver.Options{
BindAddress: "0",
},
LeaderElection: false,
})
Expect(err).NotTo(HaveOccurred())
return k8sManager
}
func StartK8sManager(k8sManager manager.Manager) context.CancelFunc {
ctx, cancel := context.WithCancel(context.Background())
go func() {
defer GinkgoRecover()
Expect(k8sManager.Start(ctx)).To(Succeed())
}()
Eventually(func(g Gomega) {
g.Expect(k8sManager.GetWebhookServer().StartedChecker()(nil)).To(Succeed())
}).Should(Succeed())
return cancel
}
func SetupTestEnvUser(testEnv *envtest.Environment, roleDefinitionPath string) *rest.Config {
userName := uuid.NewString()
controllersUser, err := testEnv.ControlPlane.AddUser(envtest.User{Name: userName}, testEnv.Config)
Expect(err).NotTo(HaveOccurred())
adminClient, err := client.New(testEnv.Config, client.Options{Scheme: scheme.Scheme})
Expect(err).NotTo(HaveOccurred())
controllersRole := ensureClusterRole(adminClient, roleDefinitionPath)
bindUserToClusterRole(adminClient, userName, controllersRole.Name)
return controllersUser.Config()
}
func bindUserToClusterRole(k8sClient client.Client, userName, roleName string) {
GinkgoHelper()
Expect(k8sClient.Create(context.Background(), &rbacv1.ClusterRoleBinding{
ObjectMeta: metav1.ObjectMeta{
Name: userName,
},
Subjects: []rbacv1.Subject{{
Kind: "User",
Name: userName,
}},
RoleRef: rbacv1.RoleRef{
Kind: "ClusterRole",
Name: roleName,
},
})).To(Succeed())
}
func ensureClusterRole(k8sClient client.Client, roleDefinitionPath string) *rbacv1.ClusterRole {
clusterRoleDefinition, err := os.ReadFile(toAbsPath(roleDefinitionPath))
Expect(err).NotTo(HaveOccurred())
roleObject, _, err := scheme.Codecs.UniversalDeserializer().Decode(clusterRoleDefinition, nil, new(rbacv1.ClusterRole))
Expect(err).NotTo(HaveOccurred())
clusterRole, ok := roleObject.(*rbacv1.ClusterRole)
Expect(ok).To(BeTrue())
Expect(client.IgnoreAlreadyExists(k8sClient.Create(context.Background(), clusterRole))).To(Succeed())
return clusterRole
}
func toAbsPath(roleDefinitionPath string) string {
_, thisFilePath, _, ok := runtime.Caller(0)
Expect(ok).To(BeTrue())
thisFileDir := filepath.Dir(thisFilePath)
return filepath.Join(thisFileDir, "..", "..", roleDefinitionPath)
}